Right now, Auburn.
By next year, likely Bama.
Every year in the forseeable future, Florida.
In the future, Arkansas.
Arkansas, like LSU, doesn't have a true natural rival. Our rival was Ole Miss but they haven't had much significance in the last few decades.
Arkansas's last true rival was Texas (albiet Texas's rivals have always been OU and A&M). It's only natural that Arkansas and LSU will become chief rivals over the course of time. In fact, in my view its a foregone conclusion.
The LSU/Arkansas rivalry is only going to get more intense as a natural border war. Arkansas has a lot of tradition and doesn't seem to string as many bad years football wise as Ole Miss does.
Arkansas last year nearly kept us out of the national title game yet luckily stars were aligned and things worked out.
It's our last regular season game and there will be a number of years where that game will determine the SEC West title. I have a feeling upcoming generations will learn to hate Arkansas more than Ole Miss.
This post was edited on 7/15 at 3:53 pm